1079947440 has 480 divisors, whose sum is σ = 4518835776. Its totient is φ = 227082240.

The previous prime is 1079947439. The next prime is 1079947471. The reversal of 1079947440 is 447499701.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1750012 + ... + 1750628.

Almost surely, 2^1079947440 is an apocalyptic number.

1079947440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1079947440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2259417888).

1079947440 is an abundant number, since it is smaller than the sum of its proper divisors (3438888336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1079947440 is a wasteful number, since it uses less digits than its factorization.

1079947440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 668 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 1079947440 is about 32862.5537656464. The cubic root of 1079947440 is about 1025.9689239701.

The spelling of 1079947440 in words is "one billion, seventy-nine million, nine hundred forty-seven thousand, four hundred forty".